Patents by Inventor Tooraj Hashemi

Tooraj Hashemi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrodes and battery cells
    Patent number: 5405718
    Abstract: Ceramic electrodes of cadmium germanate and other ternary oxide materials, provide electrodes for secondary battery cells. Open circuit voltages of 1.5 volts are attainable. The absence of crystallographic phase changes on charge/discharge is noted and renders possible the use of solid electrolytes, possibly in a unitary ceramic structure.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: April 11, 1995
    Assignee: Elmwood Sensors Limited
    Inventor: Tooraj Hashemi
  • Ceramic material and process for its production
    Patent number: 5318723
    Abstract: Conductive ceramic materials are provided which have resistivities at room temperature of less than 10.sup.-3 .OMEGA..cm. These novel materials may be made by forming a ceramic starting material comprising oxides of at least two different metals, one of which is capable of existing in a +2 oxidation state and one of which is capable of existing in a +4 oxidation state and exposing the ceramic starting material to reducing conditions.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: June 7, 1994
    Assignee: Elmwood Sensors, Ltd.
    Inventor: Tooraj Hashemi
  • Conductive ceramics, conductors thereof and methods
    Patent number: 5157581
    Abstract: A ceramic of known composition exhibiting superconductivity below a critical temperature is caused to exhibit superconductivity or superconductor-like behaviour at room temperature by the application of an electrochemical potential. The effect is believed to arise from an increased population of the monovalent state of copper and other methods are proposed for creating such a population without cooling.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: October 20, 1992
    Assignee: Elmwood Sensors Limited
    Inventor: Tooraj Hashemi